3M AO Safety/3M Tekk 99014 Blockade Noise Isolating Earbuds dB limiter provides safe hearing while listening to your MP3 player. Patented design combines a triple flange, safety ear bud for an excellent fit and radically reduces noise for an in - ear design that allows you to play only the music High quality, stereo sound with easy access volume controls. Use in the yard while mowing and gardening, in the workshop, on the job, in the gym or traveling on a plane to safely isolate background noise. Ultra comfortable design from the same company who brought you the industry leading WorkTunes